A. Diamond B. lodine C. Sulphur D. Graphite E. lron Correct Answer: Option A - Diamond
A. maltose B. lactose C. fructose D. glucose E. sucrose Correct Answer: Option D - glucose
A. Filtration B. Chromatography C. Evaporation D. Fractional crystallization E. Fractional distillation Correct Answer: Option E - Fractional distillation
A. Cu(NO3)3 + NO + N2O4 + H2O B. Cu(NO3)2 + NO + H2O C. CuO + NO2 + H2O…
A. NaHCO3 B. K2CO3 C. MgCO3 D. Ca(HCO3)2 E. ZnCO3 Correct Answer: Option B - K2CO3
A. potential energy B. free energy C. bond energy D. kinetic energy E. hydration energy Correct Answer: Option D -…
A. 1s² 2s² B. 1s² 2s² 2p4 C. 1s² 2s² 2p6 3s² 3p6 D. 1s² 2s² 2p² E. 1s² 2s²…
A. 86g B. 92g C. 98g D. 110g E. 112g Correct Answer: Option D - 110g
A. magnesium nitride and magnesium oxide B. magnesium nitride and carbon (ll) oxide C. magnesium oxide and steam D. magnesium…
A. heating coal in plentiful supply of air B. burning coal in air to produce water and carbon (IV) oxide…